Hi Navjot, Welcome to Healthcare Magic and thanks for your question... Epival (Sodium Valproate) and Tegritol (Carbamazepine) are both anti-epileptics and you seem to be on an adequate dosage of both. Clobazam is also an anti-epileptic medication which is usually used as an adjunct to other medication in case of resistant seizures, especially of the complex partial type. It is sometimes used as an anti-anxiety medication also. Nexito (Escitalopram) is an anti-depressant medication. Now, your difficulty in concentration could be due to different reasons. Recurrent seizures, epsecially if you are skipping medicines often, can be one reason. The anti-epileptic medication, especially as you are on a combination, can sometimes have side effects like concentration and memory difficulties, drowsiness, etc. It is also likely that you may be having some depressive symptoms, which may be the reason you doctor has put you on an anti-depressant. Depression and stress can also be a cause for your difficulty in concentration. What I would suggest is that you should be absolutely regular on your medication and never skip a dose. Also, discuss with your doctor about your problem, to see if any dose adjustments are required - may be, shifting a majority of your doses to the night. If you are feeling very stressed out or depressed, then it would help to talk to someone, may be a psychiatrist, and to learn relaxation / stress management techniques. All the best. - Dr. Jonas Sundarakumar Consultant Psychiatrist